Direct Discourse, Indirect Discourse, and Free Indirect Discourse
Source: "Free Indirect Speech." Wikipedia. Wikimedia Foundation, 27 Apr. 2013. Web. 01 May 2013.
This article might be challenging, but it's brilliant:
http://litreactor.com/columns/the-benefits-of-free-indirect-discourse
Source: Gingerich, Jon. "The Benefits of Free Indirect Discourse." LitReactor. LitReactor, LLC., 23 Aug. 2012. Web. 01 May 2013.